HARTMAN MULTIMEDIA
Nature Based Multimedia Information Systems
|
HARTMAN MULTIMEDIA
Nature Based Multimedia Information Systems |
|
|
Havasu National Wildlife Refuge - Topock Gorge Lying entirely within the Havasu National Wildlife
Refuge, the Topock Gorge is one of the more spectacular areas on
the lower Colorado River. The river cuts a gorge 30 to 90 meters (100 to 300
feet) deep through the Pre-Cambrian gneisses and granitics and Tertiary
volcanics of the Chemehuevi Mountains, forming sheer and overhanging walls in
places. The contrast between the
varied-colored rock, primarily reddish, and the marshes and river, is
noteworthy. The rocky slopes are sparsely covered by creosote bush
scrub, with numerous Cactaceae present. Extensive
portions along the shore are bordered by freshwater marsh with Scirpus sp. and
Typha sp. present. The endangered Yuma clapper rail, Rallus longirostris
yumanensis, breeds in the marshes, as do numerous other species. Integrity: This
section of the Colorado has not been "reclaimed" or
"controlled" for flood prevention there are, however, a few aids to
mariners. Use: Research,
educational, observational, light recreational. December 1976
|
|
Send mail to naturebase@aol.com with
questions or comments about this web site.
|